Assignee
IMPACT SYSTEMS INC
US25 patents
Top patents by PatentIndex Score
US6031620AFeb 29, 2000
Gloss sensor resistant to tilting and shifting paper and with improved calibration
IMPACT SYSTEMS INC26 citations92
US5132619AJul 21, 1992
Thickness gauge having a low unsprung weight for moving sheet material for lightweight paper
IMPACT SYSTEMS INC23 citations92
US5010766AApr 30, 1991
Error compensation for measuring gauges
IMPACT SYSTEMS INC28 citations92
US4791367ADec 13, 1988
Contacting thickness gauge for moving sheet material
IMPACT SYSTEMS INC32 citations92
US4748400AMay 31, 1988
Method for controlling the amount of moisture associated with a web of moving material
IMPACT SYSTEMS INC39 citations92
US6169848B1Jan 2, 2001
Cross-direction dryer for a machine producing sheet material moving in a machine direction having both gas powered and electric heating portions
IMPACT SYSTEMS INC31 citations89
US4859926AAug 22, 1989
Power controller for heater load
IMPACT SYSTEMS INC35 citations89
US4791353ADec 13, 1988
Scanning combination thickness and moisture gauge for moving sheet material
IMPACT SYSTEMS INC31 citations89
US4980846ADec 25, 1990
Process and apparatus for controlling on-line a parameter of a moving sheet
IMPACT SYSTEMS INC34 citations85
US4494316AJan 22, 1985
Apparatus for drying a moving web
IMPACT SYSTEMS INC47 citations85
US6185468B1Feb 6, 2001
Decoupling controller for use with a process having two input variables and two output variables
IMPACT SYSTEMS INC19 citations84
US6133578AOct 17, 2000
Nuclear gauge for measuring a characteristic of moving sheet material and alignment compensation
IMPACT SYSTEMS INC8 citations73
US4929895AMay 29, 1990
Thickness gauge for moving sheet material with inner and outer flexibly mounted bearings
IMPACT SYSTEMS INC17 citations73
US6145211ANov 14, 2000
Contacting thickness gauge for moving sheet material
IMPACT SYSTEMS INC7 citations71
US4789431ADec 6, 1988
Apparatus for sensing the thickness of a pulp suspension on the forming wire of a paper machine
IMPACT SYSTEMS INC14 citations71
US4509270AApr 9, 1985
Method and apparatus for drying a moving web
IMPACT SYSTEMS INC9 citations69
US4908956AMar 20, 1990
Power controller for heater load
IMPACT SYSTEMS INC9 citations68
US6493601B1Dec 10, 2002
Real time measurement system for a moving web using a Kalman filter algorithm
IMPACT SYSTEMS INC12 citations66
US4949478AAug 21, 1990
Arrangement for a process plant arranged for the heat treatment of strip-shaped products
IMPACT SYSTEMS INC13 citations63
US4514913AMay 7, 1985
Apparatus for drying a moving web having movable dryer modules
IMPACT SYSTEMS INC18 citations60
US5070626ADec 10, 1991
Arrangement for a process plant arranged for the heat treatment of strip-shaped products
IMPACT SYSTEMS INC7 citations58
US6253604B1Jul 3, 2001
Scanner with interior gauging head and combined dust and drive belt
IMPACT SYSTEMS INC3 citations57
US6098311AAug 8, 2000
Air heating and control system
IMPACT SYSTEMS INC0 citations38
US4990085AFeb 5, 1991
Arrangement for an exhaust in a plant arranged for the heat-treatment of products in form of a continuous strip
IMPACT SYSTEMS INC0 citations31
US6000328ADec 14, 1999
Gloss control system using air jets
IMPACT SYSTEMS INC0 citations21